Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 235, NWS Philadelphia/Mount Holly

July 17, 2019Middlesex County, Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 17, 2019, 9:19 PM EDT for Middlesex County, Monmouth County, Ocean County, New Jersey. It was in force for 41 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 17, 2019, 9:19 PM EDT (01:19 UTC)
Expired: Jul 17, 2019, 10:00 PM EDT
In force: 41 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 40 km from the middle of the area, began a volume at 01:21 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jul 17, 9:22 PM EDT	TSTM WND DMG	Freehold Twp, NJ	SEVERAL TREES AND POWER LINES DOWN IN FREEHOLD. TIME ESTIMATED FROM RADAR.
Jul 17, 9:25 PM EDT	TSTM WND DMG	1 Ssw Colts Neck Twp, NJ	DELAYED REPORT. TREE DAMAGE AT HOMINY HILL GOLF CLUB. TIME ESTIMATED FROM RADAR.
Jul 17, 9:32 PM EDT	TSTM WND DMG	Oakhurst, NJ	DELAYED REPORT: A NUMBER OF TREES DOWN IN OAKHURST. BROADCAST MEDIA CREW ON SCENE REPORTING. TIME OF EVENT ESTIMATED FROM RADAR.
Jul 17, 9:43 PM EDT	TSTM WND DMG	Oceanport, NJ	TREES AND WIRES DOWN IN OCEANPORT. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 17, 1:58 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 1.3 hours before the alert went out and 127 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1392 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 975 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.0

Open this sounding in Storm Lab

The text

As transmitted.

820 
WUUS51 KPHI 180119
SVRPHI
NJC023-025-029-180200-
/O.NEW.KPHI.SV.W.0235.190718T0119Z-190718T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
919 PM EDT Wed Jul 17 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northeastern Ocean County in southern New Jersey...
  Monmouth County in central New Jersey...
  Southeastern Middlesex County in northern New Jersey...

* Until 1000 PM EDT.

* At 918 PM EDT, severe thunderstorms were located along a line
  extending from Brownville to near Seaside Heights, moving northeast
  at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Toms River, Long Branch, Asbury Park, Lakewood, Middletown, Old
  Bridge, Jackson, Howell, Marlboro, Manalapan, Tinton Falls,
  Holmdel, Red Bank, Beachwood, Matawan, Jamesburg, Manasquan,
  Highlands, Point Pleasant Beach and Seaside Heights.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4032 7397 4007 7404 4006 7412 4005 7405
      3984 7409 3991 7409 3992 7410 3981 7420
      4033 7449 4045 7412 4041 7402 4048 7401
      4041 7398 4038 7401 4038 7397
TIME...MOT...LOC 0118Z 243DEG 37KT 4041 7427 3987 7408 

HAIL...<.75IN
WIND...60MPH
 
$$

Fitzsimmons

3 follow-up statements

226 
WWUS51 KPHI 180138
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
938 PM EDT Wed Jul 17 2019

NJC023-180147-
/O.CAN.KPHI.SV.W.0235.000000T0000Z-190718T0200Z/
Middlesex NJ-
938 PM EDT Wed Jul 17 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MIDDLESEX COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4012 7404 4007 7404 4006 7411 4037 7430
      4041 7425 4044 7415 4041 7402 4044 7401
      4048 7401 4041 7399 4038 7401 4038 7397
      4032 7403 4033 7399 4029 7398
TIME...MOT...LOC 0137Z 242DEG 36KT 4046 7410 3995 7388 

$$

NJC025-029-180200-
/O.CON.KPHI.SV.W.0235.000000T0000Z-190718T0200Z/
Ocean NJ-Monmouth NJ-
938 PM EDT Wed Jul 17 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHEASTERN OCEAN AND EASTERN MONMOUTH COUNTIES...

At 937 PM EDT, severe thunderstorms were located along a line
extending from Keansburg to 10 miles east of Dover Beaches South,
moving northeast at 40 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Long Branch, Asbury Park, Middletown, Old Bridge, Marlboro, Tinton
Falls, Holmdel, Red Bank, Matawan, Manasquan, Point Pleasant Beach,
Farmingdale, Allenwood, Elberon, Navesink, Collingwood Park,
Lincroft, Morganville, East Freehold and Ramtown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4012 7404 4007 7404 4006 7411 4037 7430
      4041 7425 4044 7415 4041 7402 4044 7401
      4048 7401 4041 7399 4038 7401 4038 7397
      4032 7403 4033 7399 4029 7398
TIME...MOT...LOC 0137Z 242DEG 36KT 4046 7410 3995 7388 

HAIL...0.88IN
WIND...60MPH
 
$$

Staarmann

853 
WWUS51 KPHI 180148
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
948 PM EDT Wed Jul 17 2019

NJC029-180158-
/O.CAN.KPHI.SV.W.0235.000000T0000Z-190718T0200Z/
Ocean NJ-
948 PM EDT Wed Jul 17 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OCEAN COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4020 7401 4044 7416 4044 7415 4041 7402
      4044 7401 4048 7401 4041 7399 4038 7401
      4038 7397 4032 7403 4033 7399 4029 7398
TIME...MOT...LOC 0148Z 230DEG 38KT 4049 7402 4030 7394 

$$

NJC025-180200-
/O.CON.KPHI.SV.W.0235.000000T0000Z-190718T0200Z/
Monmouth NJ-
948 PM EDT Wed Jul 17 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHEASTERN MONMOUTH COUNTY...

At 948 PM EDT, severe thunderstorms were located along a line
extending from near Sandy Hook to near Long Branch, moving northeast
at 45 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Long Branch, Asbury Park, Middletown, Tinton Falls, Red Bank,
Elberon, Navesink, Eatontown, West Long Branch, Rumson, Little
Silver, Oceanport, Bradley Beach, Shrewsbury, Interlaken, Deal,
Allenhurst, Loch Arbour, Ocean Grove and Wanamassa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4020 7401 4044 7416 4044 7415 4041 7402
      4044 7401 4048 7401 4041 7399 4038 7401
      4038 7397 4032 7403 4033 7399 4029 7398
TIME...MOT...LOC 0148Z 230DEG 38KT 4049 7402 4030 7394 

HAIL...0.88IN
WIND...60MPH
 
$$

Staarmann

809 
WWUS51 KPHI 180156
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
956 PM EDT Wed Jul 17 2019

NJC025-180203-
/O.EXP.KPHI.SV.W.0235.000000T0000Z-190718T0200Z/
Monmouth NJ-
956 PM EDT Wed Jul 17 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH COUNTY
WILL EXPIRE AT 1000 PM EDT...
    
The storms which prompted the warning are moving out of the area.
Therefore, the warning will be allowed to expire.  However gusty 
winds are still possible with these thunderstorms as they move out. 

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.

LAT...LON 4020 7401 4044 7416 4044 7415 4041 7402
      4044 7401 4048 7401 4041 7399 4038 7401
      4038 7397 4032 7403 4033 7399 4029 7398
TIME...MOT...LOC 0153Z 243DEG 37KT 4051 7397 4032 7389 

$$

Fitzsimmons

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 17, 8:01 PM EDT	Areal Flood Advisory	PHI	Warren	88 min
Jul 17, 8:10 PM EDT	Special Marine Warning	PHI		95 min
Jul 17, 8:15 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Hunterdon, Mercer and 1 more	45 min
Jul 17, 8:39 PM EDT	Areal Flood Advisory	PHI	Morris, Sussex	3 hr
Jul 17, 8:40 PM EDT	Special Weather Statement	PHI	Atlantic, Burlington, Mercer, Middlesex, Monmouth, Ocean	65 min
Jul 17, 8:43 PM EDT	Special Marine Warning	PHI		92 min
Jul 17, 8:50 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth, Somerset	40 min
Jul 17, 8:55 PM EDT	Areal Flood Advisory	PHI	Mercer, Middlesex, Somerset	49 min
Jul 17, 9:02 PM EDT	Flash Flood Warning	PHI	Mercer, Middlesex, Somerset	3 hr
Jul 17, 9:44 PM EDT	Special Marine Warning	PHI		61 min
Jul 17, 10:41 PM EDT	Special Marine Warning	PHI		49 min
Jul 17, 11:12 PM EDT	Areal Flood Warning	PHI	Somerset	3 hr
Jul 18, 1:30 PM EDT	Areal Flood Advisory	PHI	Gloucester	4 hr
Jul 18, 2:13 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Ocean	4 hr
Jul 18, 2:24 PM EDT	Areal Flood Advisory	PHI	Salem	3 hr
Jul 18, 2:47 PM EDT	Flash Flood Warning	PHI	Burlington, Ocean	4 hr
Jul 18, 3:48 PM EDT	Areal Flood Advisory	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean	4 hr
Jul 18, 3:59 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean, Salem	3 hr
Jul 18, 4:19 PM EDT	Flash Flood Warning	PHI	Atlantic, Burlington, Ocean	3 hr
Jul 18, 4:30 PM EDT	Areal Flood Advisory	PHI	Hunterdon	4 hr
Jul 18, 4:52 PM EDT	Special Marine Warning	PHI		53 min
Jul 18, 4:53 PM EDT	Areal Flood Advisory	PHI	Mercer, Middlesex, Monmouth, Somerset	4 hr
Jul 18, 4:56 PM EDT	Areal Flood Advisory	PHI	Cumberland, Gloucester, Salem	3 hr
Jul 18, 5:13 PM EDT	Flash Flood Warning	PHI	Mercer, Middlesex, Monmouth, Somerset	3 hr
Jul 18, 5:57 PM EDT	Areal Flood Advisory	PHI	Cumberland, Salem	2 hr
Jul 18, 6:01 PM EDT	Flash Flood Warning	PHI	Hunterdon, Middlesex, Somerset	4 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019 Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.